# Class 8 (corrosive) materials.

**Citation:** 49 CFR 177.839  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

(See also § 177.834(a) through (j).)

(a) Nitric acid. No packaging of nitric acid of 50 percent or greater concentration may be loaded above any packaging containing any other kind of material.

(b) Storage batteries. All storage batteries containing any electrolyte must be so loaded, if loaded wit

## Document text

(See also § 177.834(a) through (j).)

(a) Nitric acid. No packaging of nitric acid of 50 percent or greater concentration may be loaded above any packaging containing any other kind of material.

(b) Storage batteries. All storage batteries containing any electrolyte must be so loaded, if loaded with other lading, that all such batteries will be protected against other lading falling onto or against them, and adequate means must be provided in all cases for the protection and insulation of battery terminals against short circuits.

[Amdt. 177-87, 61 FR 27175, May 30, 1996]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-177.839>
- Source ID: `ecfr`
- SHA-256: `1ffff3414ebe5bc5aded43a42b2e1adb0b2313d50f68b619f4c67418342f8643`
- Retrieved: 2026-08-20T05:46:14.753Z
- Exported: 2026-08-22T04:09:48.004Z
- Document slug: `49-cfr-177-839`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "177",
  "section": "177.839",
  "subpart": "Subpart B—Loading and Unloading",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```